[U-Boot] [PATCH] fdt: introudce fdt_get_child_count

[Peng Fan]

Hi Simon,

On Sun, Jan 31, 2016 at 08:37:45AM -0700, Simon Glass wrote:
>Hi Peng,
>
>On 30 January 2016 at 23:38, Peng Fan <van.freenix at gmail.com> wrote:
>> Introudce fdt_get_child_count for get the number of subnodes of
>> one parent node.
>>
>> Signed-off-by: Peng Fan <van.freenix at gmail.com>
>> Cc: Simon Glass <sjg at chromium.org>
>> ---
>>  include/libfdt.h | 18 ++++++++++++++++++
>>  1 file changed, 18 insertions(+)
>>
>> diff --git a/include/libfdt.h b/include/libfdt.h
>> index e48c21a..94d29e6 100644
>> --- a/include/libfdt.h
>> +++ b/include/libfdt.h
>> @@ -193,6 +193,24 @@ int fdt_next_subnode(const void *fdt, int offset);
>>              node >= 0;                                 \
>>              node = fdt_next_subnode(fdt, node))
>>
>> +/**
>> + * fdt_get_child_count() - get the number of subnodes of one node
>> + *
>> + * @fdt:       FDT blob
>> + * @node:      Offset of node
>> + * @return number of child nodes of node, or 0 if there is no subnode.
>> + */
>> +static inline int fdt_get_child_count(void *fdt, int node)
>
>Does this need to be inline. It doesn't seem important to me.

I just follow linux kernel and add inline. If inline is not needed, I can
move the piece code to lib/fdtdec.c.

You mean this API is not important?

Thanks,
Peng

>
>> +{
>> +       int subnode;
>> +       int num = 0;
>> +
>> +       fdt_for_each_subnode(fdt, subnode, node)
>> +               num++;
>> +
>> +       return num;
>> +}
>> +
>>  /**********************************************************************/
>>  /* General functions                                                  */
>>  /**********************************************************************/
>> --
>> 2.6.2
>>
>
>Regards,
>Simon